cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A278200 Partition numbers (A000041) of the form 2^6 * k for odd k.

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%I A278200 #12 Nov 23 2016 10:59:33
%S A278200 2323520,37027355200,8030248384943040,55733465144636286656,
%T A278200 134508188001572923840,6179690078238084808000,
%U A278200 975509982873756796925504,69523232218023552371152320,638864582333908382360557376,1151097146124113726578727360,1204186073016375022219516992
%N A278200 Partition numbers (A000041) of the form 2^6 * k for odd k.
%C A278200 Also partition numbers having six times as many even divisors as odd divisors.
%H A278200 Colin Barker, <a href="/A278200/b278200.txt">Table of n, a(n) for n = 1..150</a>
%t A278200 Select[PartitionsP@ Range@ 1500, Count[#, k_ /; EvenQ@ k] == 6 Count[#, k_ /; OddQ@ k] &@ Divisors@ # &] (* _Michael De Vlieger_, Nov 15 2016 *)
%o A278200 (PARI) maxk=1000; L=List(); for(k=1, maxk, p=numbpart(k); if(p%2^6==0 & p\2^6%2==1, listput(L, p))); Vec(L)
%Y A278200 Cf. A275029, A278196, A278197, A278198, A278199, A278201.
%K A278200 nonn
%O A278200 1,1
%A A278200 _Colin Barker_, Nov 15 2016